Resawing-machine



(5N0 Model.) 2 SheetsSheet 1.

G. W. MASON. RESAWING MACHINE.

No. 442,528. Patented Dec. 9, 1890.

we Nonms Fz'rins cu, PNOTO-L1THO., WASHINGTON, n. c.

(No Model.) 2 Sheets-Sh66t 2.

G. W. MASON. RESAWING MACHINE.

No. 442,528. Patented Dec. 9, 1890.

74 1372 eaves {Z fi'fly 72207 0 Jf MJM w ATENT FFICE.

GEORGE IV. MASON, OF EAU CLAIRE, IVISCONSIN.

RESAWING-MACHINE.

[SPECIFICATION for ming part of Letters Patent No. 442,528, datedDecember 9, 1890.

Application filed March 15, 1890- serial No. 343,971. (No model.) l I Toall whom it may concern.-

Be it known that I, GEORGE W. Mason, a citizen of the United States,residing at Eau Olaire,in the county of Eau Claire and State ofIVisconsin, have invented certain new and useful Improvements inResawing-llachines and the Same Combined with Planing-Machines; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention consists in improvements in a machine of that type which isused for resawing or splitting sawed or planed boards, said improvementsadapting the machine for more effectively sawing boards with either twoparallel or one straight and one convergin g side, and also especiallyadapting the same for attachmentto a planingor other machine, so thatthe operation of planing and resawing are carried on continuously. andthus time and labor of handling the boards between the planer andresawing-machine saved.

In the accompanying drawings, Figure 1 is a rear elevation of myresawingmachine. Fig. 2 is a top View of the same, the saw beingomitted. Fig. 3 is a vertical cross-section in the line a: a: of Fig. 1.Fig. 4. is a vertical cross-section in the line y y of Fig. 1. Fig. 5 isa detail section in the line .2 z of Fig. 1. Fig. 6 is a diagramillustrating a planing-machine and my resawing-machine combined.

The letter A in the drawings represents a foundation or supportconsisting of a bedplate a and tubular central guide a.

B is a frame'carrier, consisting of a vertical screw 1), having alongitudinal keyway I), upper and lower clamp-nuts b respectivelybearing against the upper and lower faces of the tubular guide a, and ahead 11*, with a horizontal bearing b therein. The keyway 1) permits thescrew to slide upon a spline a fastened in the tubular guide a. Into thebearing a horizontal fulcrumshaft O is fitted, to which two lever-framebeams D D are fastened by means of a head of the shaft C and a nut c atthe end of it. They are ar ranged one at either side of the head I) andmade to bear snugly against it. Each of these lever-frame beams D D isprovided at one end with a fixed transverse horizontal shaftbearing (Zand at the other end with a similar but adjustable bearing (1. Theadjustable bearings d are made to slide in longitudinal guideways d ofthe lever-frame hear ing D D, and there they bear against springs E,which latter are longitudinally adjusted by means of screws (2. Each ofthese screws 6 is provided with a guide-shank e and a milled head 0their threaded portions being fitted into boss formations (l at the endsof the guideways 61 and the milled heads moving in slots d of theleverframe beams, while the guide-shanks c are fitted into suitableholes in the said beams. Thus the milled heads may be easily operated byhand when the tension of the springs E is required to be changed, aswill be seen. Other suitable means than milled heads may be employed inorder to facilitate the operation of the said screws-that is, meansadapted for the use of a wrench or other implement.

In the bearings d CZ the shafts F F of the band-saw drums f are hung,and over these drums the band-saw F is stretched and held taut by meansof the tension of the springs E. bearings d, is provided with adriving-pulley P. The band-saw is controlled by guides G, placed over asaw-table F and is steadied between said guides. The guides consist oftwo posts g, fastened to the rear lever-frame beam D, and two slidingslotted guide-heads g. The guide-heads g are provided with shanks gwhich slide in suitable heads 9 of the post 9 and are there held inposition by means of set-screws g*. W hen narrow boards are to beresawed, the guide-heads are set nearer together'and farther apart whenwide boards are to be resawed. hen boards of uniform width are to beresawed, the guideheads are set in contact with their edges, and thusvery accurate Work can be produced.

hen it is desired to saw at an angle or slope for the purpose ofproducing boards of a tapering sectional area, it can be effected bytilt-ing the lever-frame beams D D by means of swivel-screws II. Theseswivelscrews consist each of a tubular nut h, having a polygonalformation h and a spherical head W, a check-nut 71 and a screw h, havinga spherical head lbs. The heads 72/ rest in suitable depressions a ofthe bed-plate a, and

The shaft F, which is hung in the rigid the head 7L5 in similardepressions (Z in the lever-frame beams D D, and thus are capable ofreadily accommodating themselves to the different posit-ions of the saidbeams.

When the beams D D are to be adjusted to a certain angular position orhorizontal position, the check-nuts h are loosened and the screws 7Lscrewed into the nuts h on one side of the fulcrum-shaft (J, while thoseon the other side are simultaneously screwed out or up hard against theupper and lower bearings until the said beams stand in the desiredposition, whereupon the check-nuts h are drawn hard upon the nut 71, wasto firmly secure the parts in the desired position. lion is facilitatedby means of a testing plane surface provided upon each of the beams I)D, which surfaces are parallel or in line with each other and parallelwith the bandsaw F, and by applying a spirit-level or clinometer to saidsurfaces the angle of the beams D D and saw F can be easily determinedand desired adjustment speedily effected.

For sawing boards of different thicknesses the saw requires vertical adjustmcnt, and to this end the nuts I) b 7&3 are loosened and the beams DD raised or lowered, asthe case may be, upon the swivel-screws H untilthe proper elevation, or both elevation and angle, of the saw F areattained, whereupon the said nuts are again drawn on, so as to retainthe desired adjustment.

In Fig. 6 a table F of a planing-machine R is shown, said tableextending through the resaWing-machine. Vith this construction andarrangement the boards in leaving the planing-machine are moved by theordinary feeding mechanism of the planing-machine into theresawingmachine without manual labor, thus saving the services of anattendant for introducing the boards into the resawingmachine.

In this combined mechanism the resawingmachine is driven by a belt P,which transfers motion from the pulley Q of a line-shaft q to the pulleyP. A belt Q transfers motion from the pulley Q to a pulley t of the mainshaft q of the planing machine R.

What I claim as my invention is 1. The combination of a rigidboard-support, a band-saw, means for adjusting the same in a verticaldirection and also in horizontal and inclined positions, and means forThis operaoperating the band-saw, substantially as described.

2. In a band-saw, the vertically-adjusting carrier 13, having nuts 11 Z1keyway Z), support A intermediate the ends of the beams and havingtubular guide a and spline (t and thelever-frame beams D D, havingbearings (Z d, substantially as described.

In a band-sawing machine, the described vertically-adjustable support AB, the bandsaw, lever-frame beams D D, carrying the saw, the tiltingswivel-screws H, and means for operating the band-saw, substantially asdescribed.

at. The band-saw and supporting leverframe beams D D, in combinationwith the fulcrum-shaft C. fixed bearing (Z, the adjustablespring-bearing d, and means for operating the band-saw, substantially asdescribed.

5. In a resaWing-machine, the band-saw, means for operating the same,and supporting lever-frame beams D D, having plane testing-surfacessubstantially as described.

(5. The combination of the band-saw, means for operating the same, theadjustable leverframe beams D D, fulcrum-shaft C, and thelongitudinally-adjustable band-saw guides G, substantially as described.

'7. The combination, with a planing-machine, of the resaWing-machinecomprising a band-saw, means for operating the same, connectedhorizontal frame-beams, and acentral vertical]y-adjustable support,substantially as described.

8. The combination, with a planing-machine, of the resawin g mechanismcomprisin a band-saw, means for operating the same,

and means for adjusting it inclinatorily with respect to the table ofthe planing-machine, substantially as described.

9. The combination, with a planing-machine, of the band-sawresawing-machine, comprising a band-saw, means for operating the same,and means for adjusting it both vertically and inclinatorily withrespect to the table of the planing-machine, substantially as described.

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

GEORGE MASON.

\Vitnesses:

E. A. BO'IT, OSCAR TURNER.

